regroup code that needs TILEDB_DEPRECATED

[eddelbuettel]

This is a very straightforward regreouping of code that was previously in src/libtiledb.cpp. The routines calling into deprecated API entry points have now been collected in a separate file, and only that file is compiled with the flag.

Currently, the older (R) types tiledb_dense and tiledb_sparse rely on some deprecated routines. And while we could rewrite this, it may be preferable to just focus on the newer tiledb_array and keep the two older ones around until we deprecate them from the R package at some point.

The net benefit is that we now compile a lot less code under TILEDB_DEPRECATED making it a lot easier to spot new deprecations if an when they arise.

Otherwise, no code changes. Just some reshuffling of deck chairs.

[ihnorton]

small typo, declaratons -> declaratIons

[eddelbuettel]

And another typo. Here is what R's fortunes package has to say about this:

R> fortunes::fortune(112)           

 I think we can reject the null hypothesis of "Dirk can type" at all  
 convential significance levels.         
    -- Dirk Eddelbuettel (after several users including himself had               
       misspelled Ubuntu as Umbutu or Ubunto)                     
       R-help (April 2005)                  

R>      

[eddelbuettel]

Fixed in 9d61681.

Also pushed a commit updating RcppExports.{R,cpp} which are "different" in that the sequence of generated glue functions is different due to the "reordering" of input with the new file src/declarations.cpp. Still no source changes whatsoever.